1 files changed, 1 insertions, 2 deletions
diff --git a/app.go b/app.go
index 2f1fec9..a95b180 100644
--- a/app.go
+++ b/app.go
@@ -232,7 +232,7 @@ func (app *app) writeHistory() error {
 	}
 
 	for _, cmd := range app.cmdHistory {
-		_, err = f.WriteString(fmt.Sprintf("%s %s\n", cmd.prefix, cmd.value))
+		_, err = fmt.Fprintf(f, "%s %s\n", cmd.prefix, cmd.value)
 		if err != nil {
 			return fmt.Errorf("writing history file: %s", err)
 		}
@@ -585,5 +585,4 @@ func (app *app) runShell(s string, args []string, prefix string) {
 			app.ui.exprChan <- &callExpr{"load", nil, 1}
 		}()
 	}
-
 }